kodomo wa asa hayaku okiruno o iyagarukoto ga arimasu.

Children sometimes dislike getting up early in the morning.

Breakdown of kodomo wa asa hayaku okiruno o iyagarukoto ga arimasu.

• は: topic particle
• 子こ供ども: child
• を: direct object particle
• 朝あさ: morning

Questions & Answers about kodomo wa asa hayaku okiruno o iyagarukoto ga arimasu.

Why is は used after 子供 instead of が?

は marks 子供 as the topic of the sentence.

Here, 子供は gives a general topic like as for children or children, in general. That fits well because the sentence is talking about a tendency or something that happens sometimes.

If you used 子供が, it would sound more like you are specifically identifying the one who does this, rather than setting up a general topic.

So:

• 子供は = as for children / children generally
• 子供が = children are the ones who... or a more specific subject focus

Also, 子供 can mean a child or children, depending on context.

What is 朝早く doing here? Why is it 早く and not 早い?

早い is an i-adjective, and 早く is its adverb form.

Because it modifies the verb 起きる (to get up / wake up), you need the adverb form:

• 早い = early
• 早く起きる = to get up early

So:

• 朝 = morning
• 朝早く = early in the morning

This whole part describes when the waking up happens.